Fujitsu SPARC Enterprise M4000 User Manual page 170

Note – Memory mirroring requires twice the amount of memory domain used for
operation. If the PSB is a Quad-XSB type in the high-end systems, memory mirroring
cannot be used. In the midrange systems, memory mirroring can be used regardless
of whether the system board is a Uni-XSB or Quad-XSB.
Note – The add/delete/replace operations are done by field engineers (FEs). If a
command is performed, the maintenance guidance is displayed. FEs will use the
device check, select, add, and delete operations in the guidance window. For
information about how to handle and operate these devices, see the Service Manual
for your server and any manual written for FEs.
Dividing a PSB Into XSBs
■
1. Use the showfru (8) command to display information on dividing a PSB into
XSBs.
XSCF> showfru –a sb
Device
sb
sb
sb
2. Use the setupfru (8) command to divide a PSB into XSBs.
<Example> Specify PSB#00 for a Quad-XSB.
XSCF> setupfru –x 4 sb 00
3. Use the showfru (8) command to display information on dividing a PSB into
XSBs.
XSCF> showfru –a sb
Device
sb
sb
sb
2-114 SPARC Enterprise Mx000 Servers XSCF User's Guide • April 2008
Command operation
Location XSB Mode
00 Uni
01 Uni
02 Uni
Location XSB Mode
00 Quad
01 Uni
02 Uni
Memory Mirror Mode
No
No
No
Memory Mirror Mode
No
No
No